David Vizard's How to Port and Flow Test Cylinder Heads, Paperback by Vizard, David, ISBN 1934709646, ISBN-13 9781934709641, Like New Used, Free P&P in the UK Porting heads is an art and science. It takes a craftsman's touch to shape the surfaces of the head for the optimal flow characteristics and the best performance. Porting demands the right tools, skills, and application of knowledge. Few other engine builders have the same level of knowledge and skill porting engine heads as David Vizard. All the aspects of porting stock as well as aftermarket heads in aluminum and cast-iron constructions are covered. Vizard goes into great depth and detail on porting aftermarket…

Porting heads is an art and science. It takes a craftsmans touch to shape the surfaces of the head for the optimal flow characteristics and the best performance. Porting demands the right tools skills and application of knowledge.